Explosive-engine.



W. W. COOPER.

-EXPLOSWE ENGINE. APPLICATION FILED JAN. 9. ran.

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WILLIS W. COOYEB, OF FLOMOT, TEXAS.

EXELOSIVE-ENG-INE.

Specification of Iletters Patent.

Fatented Nov. iii, 1918.

Application filed January 9, 1917. Serial No. 141,388;

To all whom it may concern:

Be it known that l, WILLIS W. COOPER, acitizen of the United States, residing at Flomot, in the county of Motley and State of Texas, have invented certain new and useful Improvements in Explosive-Engines;

and 1 do hereby declare the following to he a full, clcar, and exact description of the in vention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention has for its object to provide an improved engine of the internal combustion type, in which the explosion oc curs between two oppositely moving pistons arranged in a single cylinder and connected with independent crank shafts.

Another object is the provision of a novel typeof valve near whereby the valves are mechanically actuated during operation of the engine.

Another object is the provision of means for effectively cooling the cylinder and pietons :by water forcibly circulated therethrough.

lVith these and other objects in view, the invention consists in the novel construction, combination and arrangement of parts as will be hereinafter (specifically described, claimed and illustrated in the accompanying drawings, in which:

Figure 1 represents a side elevation. of the engine, partly broken away,

Fig. 2 represents a plan view thereof,

Fig. 3 represents a fr: :entary sectional view through the cylinder of the engine.

Fig. i represents a sectional view on the line 4- 1 of Fig. 3, and

Fig. 5 represents a sectionalview on the line 55 of Fig. 3.

Referring to the drawing in detail, wherein similar reference numerals designate corresponding parts throughout the several views, the numeral 10 indicates a suitable supporting base upon which is mounted the cylinder 11, having a longitudinal bore 12 and a jacket providing a water chamber 13. Pistons 14 are arranged in the bore of the cylinder and cooperate therewith to provide the combustion chamber 14 Piston rods 15 are pivotally connected with the pistons 14, extend outwardly through the outer open ends of the cylinder 11 and are connected with the crank pins 17 of the crank shafts cylinder 11.

Fly wheels 18 are carried by the crank shafts 16, and the latter are provided with pairs of crank pins 19. The crank pins 19 of the two shafts 16 are connected by the rods .20, which are arranged on opposite sides of the cylinder 11 and the crank shafts rotate in opposite directions.

A valve housing 21 is detachably secured to the media portion of the cylinder 11 by bolts, or equivalent means 22, and incloses the inlet and exhaust ports 23 formed in the central portion of the cylinder. In- Wardly opening valves 24: are arranged in the ports 23, and the interior of the housing 21 is divided by a partition into inlet and exhaust chambers having connection with an approved type of carbureter 22 and an exhaust pipe.

A cam shaft 26 is journaled at one end in the housing 21 and is provided with spaced cams adapted to engage and actuate the stems of the valves 24:. The terminal of the shaft 26 opposite the housing 21 is connected by bevel gear wheels 28 with the crank shaft 16, so that rotary movement is im-i parted to the shaft 26 during operation of the engine; The shaft 26 isf-ormed in two parts or sections, which are connected by the universal joint 27, so as to permit the parts of the shaft to move into various angular positions. The timer mechanism 29 of the ignition system of the engine is preferably connected with the terminal of the shaft 26 and operated thereby, and is connected with the spark plugs 30, which are secured in the central portion of the cylinder 11.

A bevel gear wheel 31 meshes with a bevel gear wheel 32 connected with the vertically disposed shaft 33 of a pump 34:, whereby the latter is driven from the camshaft .36 during operation of the engine. The inlet manifold 35 of the cooling system of the engine is connected with the outlet port of the pump 3st and is provided with a plurality of branches 37, which communicate with the water chamberl3 of the main cylinder and with a chamber formed in the wall of the valve housing 21 for cooling the latter. The inlet port of the pump 34 is connected with the water outlet manifold 36, which is provided with a plurality of branches communicating with the water chan'iber 13 at various points throughout the length of the cylinder 1.1.

Each of the two pistons 1% is formed with an internal water chamber 38, which communicates at one side of the piston with a water inlet pipe 39, which is slldably received within one leg of a substantiallyU- shaped water pipe l0 communicatin with the adjacent end of the inlet manifold 3 whereby water is conducted to the piston. during reciprocation thereof. A water outlet pipe 39 is secured to the piston It and communicates with the chamber 38 at a point dial'netrically opposite the pipe 39 and. is slidably and telescopically received in one leg of a substantially U-shaped pipe 40 having connection With the water outlet manifold In operation, the explosion of the mixture occurs in the explosion chamber ll, and acting upon the opposed pistons 1% drive the latter outwardly, thu moving the crank shafts 16 in opposite directions The movement of one crank shaft is transmitted to-the other by the rods 20 and the shafts are thus caused to rotate in synchronism. The inlet and exhaust valves 2i are operated by the cams of the cam shaft 26, which latter is driven from the crank shaft 16 through the bevel gear wheels 28, and the movement of the cam shaft is transmitted to the shaft of the pump 3% by the bevel gear wheels 31 and 32, thus causing the water to circi'ilate through the water chamber 13 in the cylinder, and also maintaining a thorough circulation of water through the chambers 38 in the pistons 14.

Vhat I claim is: 1. An engine comprising a base, a horishaft within the double a combustion: chamber therebetween, means connecting the pistons to the intermediate cranks, a double chamber secured to'the cylinder and in communication with the in terior by apairof ports at a point between the pistons, valves normally closing the ports, a cam shaft driven by one of the crank shafts and journaled in the double chamber, and a pair of cams on said cam chamber to unseat the valves.

2. An engine including a horizontal cyliii= der having a crankshaft at each end, pistons movable in said cylinder in opposite directions, chambers formedin the interiorof said pistons, means connecting the pistons with the crank shaft, a Waterjacket surrounding the cylinder, a pump associated with the cylinder and driven by one of the crank shafts, inlet and outlet pipes connecting the pump with the water jacket, inlet and outlet pipes connected to the chambers of the pistons, and sulistantially U-shaped pip-es connecting the first and second named inlet and outlet pipes and adapted to telescopically receive the same.

In testimony whereof I aflix my signature in presence of two witnesses.

WILLIS W. COOPER. Witnesses R. W. Down, W. A. GILBERT. 

